John mccloskey



(No Model.) sheets-sheet 1. J. MOGLOSKEY.

EXPANSION DEVICE.

No. 398,525.. Patented Feb.. 26, 1889Kl N. Paran. Phmwumampncr. wmangwn.D c.

(No Model.) 2 Sheets-Sheet 2.

J. MGCLOSKEY.

EXPANSION DBVIGB.

No. 398,525. Patented Feb. 26, 1889.

WITNLEEEE- Y INVENT ER- j 7 Mvg/lus OVH/L7 wyw@ :UNITED tiTaTes PATENTOrricn,

JOI-IN MCCLOSKEY, OF BOSTON, MASSACHUSETTS, ASSIGN OR OF ONEHALF TOCHARLES F. FARVELL, OF SAME PLACE.

EXPANSION DEVICE.

SPECIFICATION forming part of Letters Patent No. 398,525, dated February26, 1889.

Application filed August 25, 1888. Serial No. 283,700. (No model.)

To all whom it may concern: vice. Fig. 2 is a longitudinal section of myBe it known that I, JOHN MCCLOSKEY, of device applied to a steam'pipejoint. Fig. 3 loston, in the county of Suffolk and State of is alongitudinal section of the device placed Massachusetts, have invented anew and Imon the end of a pipe. 5 yproved Expansion Device, of which thefol In Fig. l, A is the easing; B, the inlet-tube; lowing is aspecification. C, the outlet-tube; D, the regulating-screw My inventionconsists of a tube whose sides turned by the hand-wheel D; E, thestuffingare provided with one or more convolutions,V box, and F thevalve upon the valve-seat, all each extending around the tube, and eachinconstructed as usual and making no part of 6o a io dependent of theothers, and of such a shape the invention. H is a tube whose sides arethat a longitudinal section of the tube preformed into the series ot"independent annusents two convolutions or series of convolulareonvolutions H of the shape of double retions, each convolution being ofthe shape of verse C curves or springs. As will be seen, a double Cspring or curve, and the series on the two series exhibited by thesectional view 6 5' i5 each side being the reverse ofi. e., the rearethe reverse o'fwnot parallel with-each verse otl parallel with-thcseries on the oppoother. Each convolution is on a true circle, siteside. These convolutions are not spiral, and a central passage is leftclear longitudieach being on an independent circle or an innally throughthe tube. This tube is in this dependent plane, and do not extend soAfar toligure to be lled with any desirable liquid, 7o zo ward thecenter of the tube butthat a straight preference beinggiven, of course,to those that line may be drawn longitudinally through are highlyexpansible by the application of said center without coming in` contactwith a heat, and is provided with one or more inlets convolution. Thismay be used in various t'or the admission oi' the liquid, said inletsbeconnections where it is desired to convert ing preferably near theends of the tube, and 7 5 force or pressure into motion. For example,being` provided with suitable sealingstoppers, it may be filled with anyof the hydrocaras 71, whereby any possibility of leakage is bons-such asrhigoline, naphtha, gasoline, prevented. Any well-known liquid-tightsealdsc., any ol' which are highly expansible by ing device may be employedin place of the application ol' heat-and after having been simplestopper shown in the drawings. New 8o 3o sealed tightly, in any mannerdesired, will by applyingheat to this tube in any manner, elongate fromthe expansive pressure generwhether in the form of steam, electricity,or ated within said tube upon the application of other substance, thetube will expand by the heat. This it is enabled to do by the shapepressure or stretching ol' the C-curves, which ,y ot' said convolutionsor reverse C-curves in t'orin the annular eonvolntions H in an ex- 85 5thesidewallsol saidtube. Upon thcrcmoval act longitiullnal line-that is,a line drawn\ of the force or pressure the spring or power centrallythrough the tube-so that if `p he of the material of which the tube ismade may valve H, which is secured to the lower end l1 cause said tuboto return or contract to its the tube, were raised from its seatandsteam original length, thus converting force into relet in through theport B the tube whose up 9o 4o ciprocating motion g or said tube may bemade per end is secured to the lower end ol' the regto return to itsoriginal length by means ol' ulating-screw D would expand longitudinallya counter-pressure acting upon the outside and force the valve down uponits seat, while thereof. as the temperature within the casingloweredHeat may be applied to the device in any the tube would contract and thevalve be lifted 9 5 4.5 desired manner, such as in the shape of a fromits seat, letting in more steam.

naked flame or by radiation, steam, elec- In Fig. 2,1 and J aresteam-pipes, and K K tricity, hot air, dre. 'the collar forming thejointcutinto two parts In the accompanying drawings, in which to allowthe application of my tube H, which similarletters of reference indicatelike parts, has in this instance but a single convolution, loo i 5oFigure l shows a longitudinal section of a H. ln this case the tube isopen at both i steam-regulator valve provided with my deends to allowthe passage ot' the steam, and

n I n I 1s practically an expansion-Joint, the inovesion or lengtheningof the tube, whereby its nient whereby the tube is elongated andshortends are forced away from each other on a 3 5 ened being derivedfrom the contraction and straight line. elongation of the pipes I J. Anydesirable material, whether metallic or 5 In Fig. 3 the tube is securedtothe end of a otherwise, inay be used in the construction of pipe, L,and is closed at its free or outer end. the tube. Elongation of the tubeH by the application Having thus fully described my invention, 4o ofheat-say to the contents of the pipe L what I claim, and desire tosecure by Letters produces `1notion at the tree closed end of saidPatent, is- 1o tube H. l. The hereindeseribed expansion device,

I do not elaiin as new an annular convoluconsisting of a tube whosesides are formed tion, even though said convolution niay be inexternally and internally into one or more an- 45 section of the shapeof a curve orare of a circle. nular eonvolutions of the shape in sectionof My convolut-ions are C-shaped, double and rereverse C curves orsprings-1I. e., aros coin- 15 verse-t'. e., each convolution is of theshape prehending more than semieireles-whereby of an are of a circlewhich is greater than a longitudinal expansion or lengthening of thehalf-circle, (which is what I intend to convey tube may be obtained,substantially as set- 5o by C-sl1aped)-and in each convolution areforth. portions ot' two other arcs reversed, which 2. Theherein-described expansion device, 2o when completechforin the greaterpartof the consisting of a tube closed at its ends and nextconvolutions. By this means, and bewhose sides are formed externally andintereausein each convolution there are no straight nally into one ormore annular convolutions 5 5 portions, but only true arcs, each morethan of the shape in section of reverse C curves or ./\i half a circle,thc expansion orlengtheningof i springs-z'. e., arcs coinprehending morethan 2 5 Ythe tube is not only greatly enhanced,but the 5semieireles-said tube containing liquid, -`^bending and strain of theoonvolutions are i whereby by the application of heatlongitudidistributed as the tube is lengthened by the nal expansion orlengthening of the tube may 6o application ot heat.

There are inany positions and places in 3o which my peculiarly-shapedtube may be set;

l pose hereinbefore described.

JOHN MCCLOSKEY.

l be obtained, substantially as and for the pur-v Witnesses:

HENRY W. WILLIAMS, J. M. HARTNETT.

but wherever the device is placed, and in whatever manner force isapplied, the same result is obtained-viz., longitudinal expanl

